[FEATURE/Modding] Add support for the new Polymod mod ID system.

[Starexify]

Linked Issues

• Closes Enhancement: more consistent mod dependency behavior #3991
• Honorable Mentione Enhancement: Make Mod Dependencies read the Mod Title rather than Folder Name #5988

Important

• Requires the following PR to be merged: [FEATURE] Allow ModMetadata to have an id field polymod#330

Description

This PR updates the PolymodHandler to use the new dirName instead of id for loading mods.

Note: This is a breaking change for mods such as the Funkin' Mod Menu if they dont switch to using Dirs and dirName instead of Ids !

So let's take this file Tree as example:

.
└── mods/
    ├── Test
    └── TestTwo

The mod "Test" will be the dependency mod for "TestTwo". And its metadata doesn't contain an id, that means the dependency must be tied to the directory name:

// TestTwo/_polymod_meta.json
  "dependencies": {
    "Test": "<VERSION>"
  }

But if a user modifies the directory name it will no longer work (check the polymod PR for reasons why).

That's why mods can add a "static" mod ID, which the dependencies could use and work even if the directory name changes:

// Test/_polymod_meta.json
  "id": "Test"

Note

This doesn't change the old behavior and mods don't need to update to this system immediately !

Screenshots/Videos

POLYMORE.IDs.mp4

[CrusherNotDrip]

Honorable Mentione